Kioxia Delivers Next-Generation E1.S SSDs for AI and Hyperscale Environments

New KIOXIA NX1 Series Data Center NVMe™ SSDs increase performance and support direct liquid cooling

Kioxia Corporation has announced the KIOXIA NX1 Series of solid-state drives (SSDs), a new generation of E1.S PCIe^® 5.0 NVMe™ data center SSDs, and Kioxia’s first SSD with direct liquid cooling support. The KIOXIA NX1 Series features Kioxia’s next-generation, in-house developed controller architecture enabling unique capabilities today while providing a foundation for future features. The new drives are engineered to deliver high-performance, power-efficient storage for GPU-enabled servers and hyperscale data center environments.

The KIOXIA NX1 Series is the successor model of the KIOXIA XD Series, and leverages PCIe^® 5.0 performance to help cloud service providers and hyperscale operators optimize infrastructure while maintaining operational efficiency. Compared to the previous generation, KIOXIA NX1 SSDs deliver up to approx. 38 % higher sequential write performance and up to approx. 20 % higher random write performance.

As AI infrastructure continues to scale, storage must keep pace with increasingly dense, accelerator-rich server designs. The E1.S form factor helps maximize storage density while supporting advanced thermal management, including cold-plate-compatible direct liquid cooling configurations that enable efficient heat dissipation in high-performance AI server environments.

Key Features

• Available in E1.S 9.5 mm (supports direct liquid-cooling and air-cooling) and E1.S 15 mm form factors (supports air-cooling)
• 1 DWPD (Drive Writes Per Day) for read-intensive applications; capacity lineup from 1.92 TB to 15.36 TB
• Compliant with PCIe^® 5.0, NVMe™ 2.0 and Open Compute Project (OCP) Datacenter NVMe™ SSD 2.6 specifications, as well as NVMe Flexible Data Placement (FDP) support
• Built with KIOXIA BiCS FLASH™ generation 8 TLC memory technology utilizing CMOS directly Bonded to Array (CBA) architecture
• Optional TCG Opal-compliant Self-Encrypting Drive (SED) security model

Avalability

The KIOXIA NX1 Series is currently sampling to select hyperscale customers.

Key Event

The new drives will be showcased at FMS: the Future of Memory and Storage, taking place August 4 – 6 in Santa Clara, CA.

Key Links

More information about data center SSDs from Kioxia Corporation

Read the article: Storage Solutions Empowering AI